Alkermes plc. — Director's Dealing 2017

Jan 10, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2017-01-09

Reporting Person: Stejbach Mark (SVP/Chief Comm Off, Alks Inc)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-01-09	Ordinary Shares	M	547	$17.30	Acquired	34662	Direct
2017-01-09	Ordinary Shares	S	547	$60.27	Disposed	34115	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-01-09	Employee Stock Option (Right to Buy)	$17.30	M	547	Disposed	2022-03-07	Ordinary Shares (547)	Direct

Footnotes

F1: This option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F3: These options are fully vested in accordance with their terms.